[Tutor] Reading in file and processing it in a thread (original) (raw)

Vicki Stanfield vicki at thepenguin.org
Fri Jul 23 21:22:28 CEST 2004

#Test thread code thread2 = thread.startnewthread(self.ThreadTest, ())

Okay, I have set this up as the above code calling this:

def ThreadTest(self): print "Got into ThreadTest"

    inputfile = self.filesel.GetFilename()
    input = open('C:/'+inputfile, 'r')
    tokens=""

    
    while STOP_READ != wx.TRUE or first_iteration == wx.TRUE:
        for line in input.readlines():
            if len(line)>1:
                first_iteration == wx.FALSE
                tokens=line.split("|")

                self.command = tokens[0][0]+tokens[0][1]
                self.arguments = tokens[0].lstrip(tokens[0][0]+tokens[0][1]+" ")
                print self.command
                print self.arguments
                self.ProcessCommand(self.command, self.arguments)
                #wx.GetApp().Yield()
            else:
                input.close()

But I get a strange error:

Got into ThreadTest Unhandled exception in thread started by <bound method ComboBoxPanel.ThreadTest of <__main__.ComboBoxPanel instance; proxy of C++ wxPanel instance at _8296c0_wx Panel_p>> Traceback (most recent call last): File "F:\wxComTool1.1.py", line 252, in ThreadTest inputfile = self.filesel.GetFilename() File "C:\Python23\Lib\site-packages\wxPython\wx.py", line 1834, in getattr

raise wxPyDeadObjectError( self.attrStr % self._name )

wxPython.wx.wxPyDeadObjectError: The C++ part of the wxFileDialog object has bee n deleted, attribute access no longer allowed.

Can anyone explain to me what I am doing wrong? If this same code is included where the call to start_new_thread is, it works except that I am unable to get back to the gui to uncheck the checkbox. It needs to be a different thread, so what am I doing wrong?

Thanks,

--vicki

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